Micro-electro-discharge Machining of Bulk Metallic Glasses

Author

Xingchao, Zhang ; Yong, Zhang ; Hao, Tong ; Li Yong ; Xiaohua, Chen ; Guoliang, Chen

Author_Institution

Univ. of Sci. & Technol. Beijing, Beijing

fYear

2007

fDate

26-28 June 2007

Firstpage

1

Lastpage

4

Abstract

Microholes and three-dimensional microstructures machined on the La₆₂Al₁₄Ni₁₂Cu₁₂, Zr₅₅Al₁₀Ni₅Cu₃₀ and Cu₄₆Zr₄₄Al₇Y₃ bulk metallic glasses by micro-electro-discharge machining are evaluated in this study. The recast layer and heat affected zone surrounding the entry edge of the holes and the surface quality of three-dimensional microstructures were qualitatively analyzed using SEM, and the mechanical performance tests around the holes were carried out by nanoindentation. The experiment results demonstrated that the machined samples kept the amorphous structure without devitrification and the machining characteristics are related to the thermophysical properties of the alloys.

Keywords

aluminium alloys; amorphous state; copper alloys; indentation; lanthanum alloys; mechanical testing; metallic glasses; micromachining; nickel alloys; scanning electron microscopy; yttrium alloys; zirconium alloys; Cu₄₆Zr₄₄Al₇Y₃; La₆₂Al₁₄Ni₁₂Cu₁₂; SEM; Zr₅₅Al₁₀Ni₅Cu₃₀; amorphous structure; bulk metallic glasses; devitrification; mechanical performance tests; micro-electro-discharge machining; microholes; nanoindentation; recast layer; surface quality; thermophysical properties; three-dimensional microstructures; Copper; Crystallization; Electrodes; Glass; Inorganic materials; Machining; Microstructure; Performance analysis; Temperature; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

High Density packaging and Microsystem Integration, 2007. HDP '07. International Symposium on

Conference_Location

Shanghai

Print_ISBN

1-4244-1253-6

Electronic_ISBN

1-4244-1253-6

Type

conf

DOI

10.1109/HDP.2007.4283595

Filename

4283595